Storm Drain Check Valve

Rf db rubber flex duckbill check valve brochure.

Storm drain check valve. This document explains for homes connected to a municipal sewer we discuss how to prevent sewer or storm drain backups into a building during rain or heavy flooding including the installation and use of backflow preventers backwater valves check valves and toilet drain plugs. Red valve also offers pinch valves for influent flow control flood control pump stations and fish hatcheries. Tideflex check valves are ideal for stormwater pump stations because they are non mechanical have low headloss do not slam and have no problem discharging flow with entrained solids. Once a sewer check valve closes there is no place for rainwater to escape if there is no outlet.

When townsville queensland australia experienced king tides the low lying areas were being flooded by water backing up through the storm drains. If the sanitary and storm water flow are combined inside the building another issue arises. Dual check valve with atmospheric vent prevents the reverse flow of hot or cold polluted water from entering into the potable water supply. Sewer line backup prevention.

This valve is designed for continuous pressure non health hazard applications in smaller supply lines such as laboratory equipment processing. In the wake of hurricane matthew much of the city s storm water infrastructure was in need of repair. However the king tides in january 2005 were held in check by the installation of tideflex check valves in various low lying areas. Stormwater and wastewater collection pumping stations.

If a property has a house sewer that accepts both sanitary and storm water a combined sewer system it must have an outlet for the rainwater. The series 6200 heavy duty flap gate is designed to permit the outflow of water from a pipe or a structure to a body of water while preventing backflow of the same. Repairs following hurricane matthew. It is frequently used in reservoirs tidal basins ponding basins pump stands and storm drain systems where seating heads are less than 50 feet.

A check valve prevents seawater from backing up into drainage infrastructure to mitigate tidal flooding while still allowing the outfall to drain stormwater as usual when the tide recedes. Dual check valve with atmospheric this 1 2 in.